epan/dissectors/packet-cdt.c

   1 /* Do not modify this file.                                                   */
   2 /* It is created automatically by the ASN.1 to Wireshark dissector compiler   */
   3 /* .\packet-cdt.c                                                             */
   4 /* ../../tools/asn2wrs.py -b -e -p cdt -c cdt.cnf -s packet-cdt-template cdt.asn */
   5
   6 /* Input file: packet-cdt-template.c */
   7
   8 #line 1 "packet-cdt-template.c"
   9 /* packet-cdt.c
  10  *
  11  * Routines for Compressed Data Type packet dissection.
  12  *
  13  * Copyright 2005, Stig Bj>rlykke <stig@bjorlykke.org>, Thales Norway AS
  14  *
  15  * $Id$
  16  *
  17  * Wireshark - Network traffic analyzer
  18  * By Gerald Combs <gerald@wireshark.org>
  19  * Copyright 1998 Gerald Combs
  20  *
  21  * This program is free software; you can redistribute it and/or
  22  * modify it under the terms of the GNU General Public License
  23  * as published by the Free Software Foundation; either version 2
  24  * of the License, or (at your option) any later version.
  25  *
  26  * This program is distributed in the hope that it will be useful,
  27  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  28  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29  * GNU General Public License for more details.
  30  *
  31  * You should have received a copy of the GNU General Public License
  32  * along with this program; if not, write to the Free Software
  33  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  34  *
  35  * Ref: STANAG 4406 Annex E
  36  */
  37
  38 #ifdef HAVE_CONFIG_H
  39 #include "config.h"
  40 #endif
  41
  42 #include <epan/packet.h>
  43
  44 #include "packet-ber.h"
  45 #include "packet-x411.h"
  46
  47 #define PNAME  "Compressed Data Type"
  48 #define PSNAME "CDT"
  49 #define PFNAME "cdt"
  50
  51 static proto_tree *top_tree = NULL;
  52 static proto_item *cdt_item = NULL;
  53
  54 /* Initialize the protocol and registered fields */
  55 int proto_cdt = -1;
  56
  57 /*--- Included file: packet-cdt-hf.c ---*/
  58 #line 1 "packet-cdt-hf.c"
  59 static int hf_cdt_CompressedData_PDU = -1;        /* CompressedData */
  60 static int hf_cdt_compressionAlgorithm = -1;      /* CompressionAlgorithmIdentifier */
  61 static int hf_cdt_compressedContentInfo = -1;     /* CompressedContentInfo */
  62 static int hf_cdt_algorithmID_ShortForm = -1;     /* AlgorithmID_ShortForm */
  63 static int hf_cdt_algorithmID_OID = -1;           /* OBJECT_IDENTIFIER */
  64 static int hf_cdt_contentType = -1;               /* T_contentType */
  65 static int hf_cdt_contentType_ShortForm = -1;     /* ContentType_ShortForm */
  66 static int hf_cdt_contentType_OID = -1;           /* OBJECT_IDENTIFIER */
  67 static int hf_cdt_compressedContent = -1;         /* CompressedContent */
  68
  69 /*--- End of included file: packet-cdt-hf.c ---*/
  70 #line 49 "packet-cdt-template.c"
  71
  72 /* Initialize the subtree pointers */
  73
  74 /*--- Included file: packet-cdt-ett.c ---*/
  75 #line 1 "packet-cdt-ett.c"
  76 static gint ett_cdt_CompressedData = -1;
  77 static gint ett_cdt_CompressionAlgorithmIdentifier = -1;
  78 static gint ett_cdt_CompressedContentInfo = -1;
  79 static gint ett_cdt_T_contentType = -1;
  80
  81 /*--- End of included file: packet-cdt-ett.c ---*/
  82 #line 52 "packet-cdt-template.c"
  83
  84
  85 /*--- Included file: packet-cdt-fn.c ---*/
  86 #line 1 "packet-cdt-fn.c"
  87 /*--- Fields for imported types ---*/
  88
  89
  90
  91 static const value_string cdt_AlgorithmID_ShortForm_vals[] = {
  92   {   0, "zlibCompress" },
  93   { 0, NULL }
  94 };
  95
  96
  97 static int
  98 dissect_cdt_AlgorithmID_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
  99 #line 16 "cdt.cnf"
 100   guint32 value;
 101
 102     offset = dissect_ber_integer(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 103                                   &value);
 104
 105   proto_item_append_text (cdt_item, ", %s",
 106                           val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 107                                       "unknown"));
 108
 109   if (check_col (pinfo->cinfo, COL_INFO))
 110     col_append_fstr (pinfo->cinfo, COL_INFO, "%s ",
 111                      val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 112                                  "unknown"));
 113
 114
 115
 116   return offset;
 117 }
 118 static int dissect_algorithmID_ShortForm_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 119   return dissect_cdt_AlgorithmID_ShortForm(TRUE, tvb, offset, pinfo, tree, hf_cdt_algorithmID_ShortForm);
 120 }
 121
 122
 123
 124 static int
 125 dissect_cdt_OBJECT_IDENTIFIER(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 126 #line 48 "cdt.cnf"
 127   const char *obj_id = NULL;
 128
 129     offset = dissect_ber_object_identifier_str(implicit_tag, pinfo, tree, tvb, offset, hf_index, &obj_id);
 130
 131   if (obj_id) {
 132     const char *name = get_oid_str_name (obj_id);
 133
 134     if (!name) {
 135       name = obj_id;
 136     }
 137
 138     proto_item_append_text (cdt_item, ", %s", name);
 139
 140     if (check_col (pinfo->cinfo, COL_INFO))
 141       col_append_fstr (pinfo->cinfo, COL_INFO, "%s ", name);
 142   }
 143
 144
 145
 146   return offset;
 147 }
 148 static int dissect_algorithmID_OID_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 149   return dissect_cdt_OBJECT_IDENTIFIER(TRUE, tvb, offset, pinfo, tree, hf_cdt_algorithmID_OID);
 150 }
 151 static int dissect_contentType_OID_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 152   return dissect_cdt_OBJECT_IDENTIFIER(TRUE, tvb, offset, pinfo, tree, hf_cdt_contentType_OID);
 153 }
 154
 155
 156 static const value_string cdt_CompressionAlgorithmIdentifier_vals[] = {
 157   {   0, "algorithmID-ShortForm" },
 158   {   1, "algorithmID-OID" },
 159   { 0, NULL }
 160 };
 161
 162 static const ber_choice_t CompressionAlgorithmIdentifier_choice[] = {
 163   {   0, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_algorithmID_ShortForm_impl },
 164   {   1, BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_algorithmID_OID_impl },
 165   { 0, 0, 0, 0, NULL }
 166 };
 167
 168 static int
 169 dissect_cdt_CompressionAlgorithmIdentifier(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 170   offset = dissect_ber_choice(pinfo, tree, tvb, offset,
 171                                  CompressionAlgorithmIdentifier_choice, hf_index, ett_cdt_CompressionAlgorithmIdentifier,
 172                                  NULL);
 173
 174   return offset;
 175 }
 176 static int dissect_compressionAlgorithm(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 177   return dissect_cdt_CompressionAlgorithmIdentifier(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressionAlgorithm);
 178 }
 179
 180
 181 static const value_string cdt_ContentType_ShortForm_vals[] = {
 182   {   0, "unidentified" },
 183   {   1, "external" },
 184   {   2, "p1" },
 185   {   3, "p3" },
 186   {   4, "p7" },
 187   { 0, NULL }
 188 };
 189
 190
 191 static int
 192 dissect_cdt_ContentType_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 193 #line 32 "cdt.cnf"
 194   guint32 value;
 195
 196     offset = dissect_ber_integer(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 197                                   &value);
 198
 199   proto_item_append_text (cdt_item, ", %s",
 200                           val_to_str (value, cdt_ContentType_ShortForm_vals,
 201                                       "unknown"));
 202
 203   if (check_col (pinfo->cinfo, COL_INFO))
 204     col_append_fstr (pinfo->cinfo, COL_INFO, "%s ",
 205                      val_to_str (value, cdt_ContentType_ShortForm_vals,
 206                                  "unknown"));
 207
 208
 209
 210   return offset;
 211 }
 212 static int dissect_contentType_ShortForm_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 213   return dissect_cdt_ContentType_ShortForm(TRUE, tvb, offset, pinfo, tree, hf_cdt_contentType_ShortForm);
 214 }
 215
 216
 217 static const value_string cdt_T_contentType_vals[] = {
 218   {   0, "contentType-ShortForm" },
 219   {   1, "contentType-OID" },
 220   { 0, NULL }
 221 };
 222
 223 static const ber_choice_t T_contentType_choice[] = {
 224   {   0, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_contentType_ShortForm_impl },
 225   {   1, BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_contentType_OID_impl },
 226   { 0, 0, 0, 0, NULL }
 227 };
 228
 229 static int
 230 dissect_cdt_T_contentType(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 231   offset = dissect_ber_choice(pinfo, tree, tvb, offset,
 232                                  T_contentType_choice, hf_index, ett_cdt_T_contentType,
 233                                  NULL);
 234
 235   return offset;
 236 }
 237 static int dissect_contentType(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 238   return dissect_cdt_T_contentType(FALSE, tvb, offset, pinfo, tree, hf_cdt_contentType);
 239 }
 240
 241
 242
 243 static int
 244 dissect_cdt_CompressedContent(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 245 #line 68 "cdt.cnf"
 246   tvbuff_t   *next_tvb = NULL, *compr_tvb = NULL;
 247   int         save_offset = offset;
 248
 249     offset = dissect_ber_octet_string(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 250                                        &compr_tvb);
 251
 252   if (compr_tvb == NULL) {
 253     proto_tree_add_text (top_tree, tvb, save_offset, -1,
 254                          "[Error: Unable to get compressed content]");
 255     if (check_col (pinfo->cinfo, COL_INFO))
 256       col_append_fstr (pinfo->cinfo, COL_INFO,
 257                        "[Error: Unable to get compressed content]");
 258     return offset;
 259   }
 260
 261   next_tvb = tvb_uncompress (compr_tvb, 0, tvb_length (compr_tvb));
 262
 263   if (next_tvb == NULL) {
 264     proto_tree_add_text (top_tree, tvb, save_offset, -1,
 265                          "[Error: Unable to uncompress content]");
 266     if (check_col (pinfo->cinfo, COL_INFO))
 267       col_append_fstr (pinfo->cinfo, COL_INFO,
 268                        "[Error: Unable to uncompress content]");
 269     return offset;
 270   }
 271
 272   tvb_set_child_real_data_tvbuff (tvb, next_tvb);
 273   add_new_data_source (pinfo, next_tvb, "Uncompressed Content");
 274
 275   dissect_x411_mts_apdu (next_tvb, pinfo, top_tree);
 276
 277
 278
 279   return offset;
 280 }
 281 static int dissect_compressedContent(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 282   return dissect_cdt_CompressedContent(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressedContent);
 283 }
 284
 285
 286 static const ber_sequence_t CompressedContentInfo_sequence[] = {
 287   { BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_contentType },
 288   { BER_CLASS_CON, 0, 0, dissect_compressedContent },
 289   { 0, 0, 0, NULL }
 290 };
 291
 292 static int
 293 dissect_cdt_CompressedContentInfo(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 294   offset = dissect_ber_sequence(implicit_tag, pinfo, tree, tvb, offset,
 295                                    CompressedContentInfo_sequence, hf_index, ett_cdt_CompressedContentInfo);
 296
 297   return offset;
 298 }
 299 static int dissect_compressedContentInfo(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 300   return dissect_cdt_CompressedContentInfo(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressedContentInfo);
 301 }
 302
 303
 304 static const ber_sequence_t CompressedData_sequence[] = {
 305   { BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_compressionAlgorithm },
 306   { BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_compressedContentInfo },
 307   { 0, 0, 0, NULL }
 308 };
 309
 310 int
 311 dissect_cdt_CompressedData(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 312   offset = dissect_ber_sequence(implicit_tag, pinfo, tree, tvb, offset,
 313                                    CompressedData_sequence, hf_index, ett_cdt_CompressedData);
 314
 315   return offset;
 316 }
 317
 318 /*--- PDUs ---*/
 319
 320 static void dissect_CompressedData_PDU(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
 321   dissect_cdt_CompressedData(FALSE, tvb, 0, pinfo, tree, hf_cdt_CompressedData_PDU);
 322 }
 323
 324
 325 /*--- End of included file: packet-cdt-fn.c ---*/
 326 #line 54 "packet-cdt-template.c"
 327
 328
 329 /*--- proto_register_cdt -------------------------------------------*/
 330
 331 /*
 332 ** Dissect Compressed Data Type
 333 */
 334 void dissect_cdt (tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
 335 {
 336   proto_tree *tree = NULL;
 337
 338   /* save parent_tree so subdissectors can create new top nodes */
 339   top_tree = parent_tree;
 340
 341   if (parent_tree) {
 342     cdt_item = proto_tree_add_item (parent_tree, proto_cdt, tvb, 0, -1, FALSE);
 343     tree = proto_item_add_subtree (cdt_item, ett_cdt_CompressedData);
 344   }
 345
 346   if (check_col (pinfo->cinfo, COL_PROTOCOL))
 347     col_set_str (pinfo->cinfo, COL_PROTOCOL, "CDT");
 348   if (check_col (pinfo->cinfo, COL_INFO))
 349     col_clear (pinfo->cinfo, COL_INFO);
 350
 351   dissect_CompressedData_PDU (tvb, pinfo, tree);
 352 }
 353
 354 void proto_register_cdt (void) {
 355
 356   /* List of fields */
 357   static hf_register_info hf[] = {
 358
 359 /*--- Included file: packet-cdt-hfarr.c ---*/
 360 #line 1 "packet-cdt-hfarr.c"
 361     { &hf_cdt_CompressedData_PDU,
 362       { "CompressedData", "cdt.CompressedData",
 363         FT_NONE, BASE_NONE, NULL, 0,
 364         "CompressedData", HFILL }},
 365     { &hf_cdt_compressionAlgorithm,
 366       { "compressionAlgorithm", "cdt.compressionAlgorithm",
 367         FT_UINT32, BASE_DEC, VALS(cdt_CompressionAlgorithmIdentifier_vals), 0,
 368         "CompressedData/compressionAlgorithm", HFILL }},
 369     { &hf_cdt_compressedContentInfo,
 370       { "compressedContentInfo", "cdt.compressedContentInfo",
 371         FT_NONE, BASE_NONE, NULL, 0,
 372         "CompressedData/compressedContentInfo", HFILL }},
 373     { &hf_cdt_algorithmID_ShortForm,
 374       { "algorithmID-ShortForm", "cdt.algorithmID_ShortForm",
 375         FT_INT32, BASE_DEC, VALS(cdt_AlgorithmID_ShortForm_vals), 0,
 376         "CompressionAlgorithmIdentifier/algorithmID-ShortForm", HFILL }},
 377     { &hf_cdt_algorithmID_OID,
 378       { "algorithmID-OID", "cdt.algorithmID_OID",
 379         FT_OID, BASE_NONE, NULL, 0,
 380         "CompressionAlgorithmIdentifier/algorithmID-OID", HFILL }},
 381     { &hf_cdt_contentType,
 382       { "contentType", "cdt.contentType",
 383         FT_UINT32, BASE_DEC, VALS(cdt_T_contentType_vals), 0,
 384         "CompressedContentInfo/contentType", HFILL }},
 385     { &hf_cdt_contentType_ShortForm,
 386       { "contentType-ShortForm", "cdt.contentType_ShortForm",
 387         FT_INT32, BASE_DEC, VALS(cdt_ContentType_ShortForm_vals), 0,
 388         "CompressedContentInfo/contentType/contentType-ShortForm", HFILL }},
 389     { &hf_cdt_contentType_OID,
 390       { "contentType-OID", "cdt.contentType_OID",
 391         FT_OID, BASE_NONE, NULL, 0,
 392         "CompressedContentInfo/contentType/contentType-OID", HFILL }},
 393     { &hf_cdt_compressedContent,
 394       { "compressedContent", "cdt.compressedContent",
 395         FT_BYTES, BASE_HEX, NULL, 0,
 396         "CompressedContentInfo/compressedContent", HFILL }},
 397
 398 /*--- End of included file: packet-cdt-hfarr.c ---*/
 399 #line 86 "packet-cdt-template.c"
 400   };
 401
 402   /* List of subtrees */
 403   static gint *ett[] = {
 404
 405 /*--- Included file: packet-cdt-ettarr.c ---*/
 406 #line 1 "packet-cdt-ettarr.c"
 407     &ett_cdt_CompressedData,
 408     &ett_cdt_CompressionAlgorithmIdentifier,
 409     &ett_cdt_CompressedContentInfo,
 410     &ett_cdt_T_contentType,
 411
 412 /*--- End of included file: packet-cdt-ettarr.c ---*/
 413 #line 91 "packet-cdt-template.c"
 414   };
 415
 416   /* Register protocol */
 417   proto_cdt = proto_register_protocol (PNAME, PSNAME, PFNAME);
 418
 419   /* Register fields and subtrees */
 420   proto_register_field_array (proto_cdt, hf, array_length(hf));
 421   proto_register_subtree_array (ett, array_length(ett));
 422
 423 }
 424
 425
 426 /*--- proto_reg_handoff_cdt ---------------------------------------*/
 427 void proto_reg_handoff_cdt (void) {
 428
 429 /*--- Included file: packet-cdt-dis-tab.c ---*/
 430 #line 1 "packet-cdt-dis-tab.c"
 431   register_ber_oid_dissector("1.3.26.0.4406.0.4.2", dissect_CompressedData_PDU, proto_cdt, "cdt");
 432
 433
 434 /*--- End of included file: packet-cdt-dis-tab.c ---*/
 435 #line 106 "packet-cdt-template.c"
 436 }